import numpy as np
arr1=np.array([[10,20,30],[40,50,60]])
print('2x3的数组arr1：\n',arr1)
arr2=np.array([[1,2,2],[2,2,3]])
print('2x3的数组arr2:\n',arr2)
print('arr1与arr2的+：\n',arr1+arr2)
print('arr1与arr2的-：\n',arr1-arr2)
print('arr1与arr2的*：\n',arr1*arr2)
print('arr1与arr2的/：\n',arr1/arr2)
print('arr1与arr2的**：\n',arr1**arr2)